#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#define BUF_SIZE 1024
void error_handling(char *message);
int main(int argc, char* argv[])
{
int sock;
struct sockaddr_in serv_addr;
char message[BUF_SIZE];
int str_len, recv_len, recv_cnt;
if(argc!=3){
printf("Usage : $s <IP> <port>\n", argv[0]);
exit(1);
}
sock=socket(PF_INET, SOCK_STREAM, 0);
if(sock == -1)
error_handling("socket() error");
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family=AF_INET;
serv_addr.sin_addr.s_addr=inet_addr(argv[1]);
serv_addr.sin_port=htons(atoi(argv[2]));
if(connect(sock, (struct sockaddr*)&serv_addr, sizeof(serv_addr))==-1)
error_handling("connect() error!");
else
puts("connected............");
while(1)
{
fputs ("Input message(Q to quit) : ", stdout);
fgets(message, BUF_SIZE, stdin);
if(!strcmp(message, "q\n") || !strcmp(message, "Q\n"))
break;
str_len=write(sock, message, strlen(message));
recv_len=0;
while(recv_len<str_len)
{
recv_cnt=read(sock, &message[recv_len], BUF_SIZE-1);
if(recv_cnt==-1)
error_handling("read() error!");
recv_len+=recv_cnt;
}
message[recv_len]=0;
printf("message from server : %s", message);
}
close(sock);
return 0;
}
/*
str_len=read(sock, message, sizeof(message) -1);
if(str_len == -1)
error_handling("read() error!");
printf("Message from server: %s \n", message);
close(sock);
return 0;
}
*/
void error_handling(char *message)
{
fputs(message, stderr);
fputc('\n', stderr);
exit(1);
}
댓글 분란 또는 분쟁 때문에 전체 댓글이 블라인드 처리되었습니다.